Article
Horticulture
Nicole Melanie Falla, Sonia Demasi, Matteo Caser, Valentina Scariot
Summary: Tea, a hot beverage made from dried leaves of the Camellia sinensis plant, is widely consumed globally and appreciated for its aroma, taste, and health benefits. This research evaluated the bioactive compounds and antioxidant activity of two green teas produced in Italy, showing that Italy has the potential to profitably cultivate Camellia sinensis.
Article
Materials Science, Paper & Wood
Frantisek Kreps, Blanka Tobolkova, Zuzana Ciesarova, Marianna Potocnakova, Livia Janotkova, Svetlana Schubertova, Ales Haz, Stefan Schmidt, Michal Jablonsky
Summary: By analyzing the antioxidant activity and polyphenol content of sea buckthorn juice, it was found that the 70% ethanol extract had higher TPC and TFC values, and exhibited the best antioxidant activity.
Article
Food Science & Technology
Mauro Gisbert, Andrea Aleixandre, Jorge Sineiro, Cristina M. Rosell, Ramon Moreira
Summary: This paper studied the effect of blending procedures between seaweed flour and corn starch on the interactions between polyphenols and starch. It found that different blending methods resulted in different interactions and enhanced the retention of polyphenols, achieving starchy foods with high bioactivity.
Article
Polymer Science
Smaher M. Elbayomi, Haili Wang, Tamer M. Tamer, Yezi You
Summary: The study synthesized an aromatic alginate derivative with benzoyl groups, which exhibited higher thermal stability, anti-inflammatory properties, and enhanced antioxidant activity compared to regular alginate, indicating its potential for use in gene and drug delivery applications.
Article
Plant Sciences
Jae Il Lyu, Jaihyunk Ryu, Kyoung-Sun Seo, Kyung-Yun Kang, Sang Hoon Park, Tae Hyun Ha, Joon-Woo Ahn, Si-Yong Kang
Summary: In this study, the phenolic compounds in hop strobile extracts were investigated, and their antioxidant property was evaluated. The results showed that the type of extraction solvent used significantly affected the phenolic compounds and antioxidant activity.
Article
Chemistry, Physical
Dinh Quy Huong, Mai Van Bay, Pham Cam Nam
Summary: The antioxidant abilities of thiourea derivatives were characterized by measuring the color change of DPPH and ABTS when reacting with the compounds. DPTU exhibited better free radical capture capability compared to BPTU, which was confirmed by quantum chemical calculations. Kinetic calculations revealed that hydrogen atom transfer mechanism is preferred over single electron transfer mechanism when thiourea derivatives react with free radicals, with HAT mechanism accounting for 99.99% of the product amount.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Biochemistry & Molecular Biology
Irina Georgiana Munteanu, Constantin Apetrei
Summary: The analysis of antioxidants in different foodstuffs has been a popular area of research, leading to the development of new antioxidant assays. Green tea, known for its health benefits, contains catechin, an important antioxidant. This study investigates the use of different electrodes and enzyme modifications to measure the catechin content and antioxidant activity in green tea.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
W. Rogoz, J. Pozycka, K. Kulig, A. Owczarzy, A. Szkudlarek, M. Maciazek-Jurczyk
Summary: This study analyzed the thermodynamics of the interaction between ketoprofen, naproxen, diclofenac and human serum albumin (HSA), as well as the impact of drug-albumin binding on HSA's antioxidant activity. The results showed that the binding of drugs and HSA is an exoenergetic reaction through hydrophobic interaction. All drugs and HSA demonstrated the ability to react with free radicals. The study also observed a synergistic effect on HSA's antioxidant activity with ketoprofen and naproxen, while the effect of diclofenac binding was likely additive.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Chemistry, Multidisciplinary
Veronica Reyes-Garcia, Alfonso Totosaus, Lourdes Perez-Chabela, Zaida Nelly Juarez, Gabriel Abraham Cardoso-Ugarte, Beatriz Perez-Armendariz
Summary: This research evaluated the potential of tamarillo red variety as a source of bioactive compounds, finding it rich in antioxidants and prebiotic substances, suitable for formulation of functional foods.
APPLIED SCIENCES-BASEL
(2021)
Review
Biochemistry & Molecular Biology
Noemi Echegaray, Mirian Pateiro, Paulo E. S. Munekata, Jose M. Lorenzo, Zakariya Chabani, Mohamed A. Farag, Ruben Dominguez
Summary: This review summarized the main antioxidant capacity assays used in meat and meat products, emphasizing the importance of antioxidants and related research in the meat industry.
Article
Biochemistry & Molecular Biology
Min Woo Baek, Han Ryul Choi, Tifsehit Solomon, Cheon Soon Jeong, Ok-Hwan Lee, Shimeles Tilahun
Summary: The research findings demonstrate that preharvest MeJA treatment can significantly enhance the phytochemical composition and antioxidant activities of hydroponically grown pak choi. Hydroponically grown MeJA-treated pak choi shows higher levels of chlorophylls, total phenolics, GSLs, total flavonoids, and stronger antioxidant capacities compared to soil-grown counterparts.
Article
Food Science & Technology
Rosanna Ginocchio, Eduardo Munoz-Carvajal, Patricia Velasquez, Ady Giordano, Gloria Montenegro, German Colque-Perez, Cesar Saez-Navarrete
Summary: The seed oil of the Mayten tree has potential health benefits due to its high levels of monounsaturated and polyunsaturated fatty acids, as well as antioxidant compounds.
Article
Engineering, Environmental
Tu Pham Le, Pakorn Opaprakasit
Summary: The study developed a halogen-free process using ozone as an environmentally-friendly alternative for the generation of TEMPO+. Quantitative monitoring of the reaction was achieved through iodine titration combined with UV-Vis spectroscopy, indicating a conversion rate of TEMPO reaching 70% under optimized conditions. The results suggest that ozone has high selectivity towards TEMPO oxidation to form TEMPO+ over disproportionation in acid solutions, making it a promising method for selective oxidation of primary alcohols.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Physics, Mathematical
Demetrios Christodoulou
Summary: This study aimed to evaluate the free radical scavenging abilities of Tectaria paradoxa and Bolbitis appendiculata using various assays. The results showed that the methanolic extracts of both plants exhibited the highest antioxidant activity, with acetone extracts demonstrating the best DPPH scavenging ability. SOD scavenging ability was also observed in the extracts, with petroleum ether and acetone extracts showing the highest activity.
JOURNAL OF MATHEMATICAL PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
Jolanta Flieger, Wojciech Franus, Rafal Panek, Monika Szymanska-Chargot, Wojciech Flieger, Michal Flieger, Przemyslaw Kolodziej
Summary: The study demonstrates the suitability of plant extracts such as green tea, Ilex paraguariensis, and Salvia officinalis for the green synthesis of silver nanoparticles. The extracts were tested for antioxidant power and reducing power activity, with green tea showing the highest antioxidant activity.
Article
Biochemistry & Molecular Biology
Malgorzata Latos-Brozio, Anna Masek, Malgorzata Piotrowska
Summary: The study successfully obtained the polymeric form of catechin through a cross-linking reaction, enhancing its antioxidant and antibacterial properties, making it suitable for medical dressings and other applications.
Article
Biochemistry & Molecular Biology
Malgorzata Latos-Brozio, Anna Masek
Summary: Adding amber acid to PLA and PHA can enhance their resistance to oxidation, but excessive amounts can have a pro-oxidative effect and accelerate aging.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Olga Olejnik, Anna Masek, Jakub Zawadzillo
Summary: This study focused on analyzing the processing properties of PLA/PHB blends without harmful additives, aiming to find the best ratio for materials suitable for the packaging industry. The 50/10 PLA/PHB blend was determined to offer the most desirable mechanical and processing properties, potentially becoming a bio-based and biodegradable material safe for human health.
Article
Biochemistry & Molecular Biology
Dominika Kajszczak, Agnieszka Kowalska-Baron, Anna Podsedek
Summary: Phytochemicals from Viburnum opulus L. fruits show potential antidiabetic effects by inhibiting carbohydrate digestive enzymes, glycation, and displaying antioxidant properties. Among tested samples, the ethyl acetate fraction of purified extract exhibited the highest phenolic content and strongest inhibitory effects, suggesting promising applications in nutraceuticals and functional foods.
Article
Biochemistry & Molecular Biology
Malgorzata Latos-Brozio, Anna Masek, Ewa Chrzescijanska, Anna Podsedek, Dominika Kajszczak
Summary: The study analyzed the polyphenolic profile of cone extracts of Douglas fir, Scots pine, and Korean fir, and investigated their antioxidant activity through various methods. The research demonstrated the significant antioxidant properties of the extracts due to their high polyphenol content, suggesting their potential use as natural stabilizers, preservatives, and antimicrobial substances in the food industry and medications.
Article
Biochemistry & Molecular Biology
Elzbieta Czarnecka, Jacek Nowaczyk, Miroslawa Prochon, Anna Masek
Summary: This study focuses on the development of a superabsorbent polymer material that exhibits high fluid absorbance and biodegradability. The swelling and dehydration kinetics of hydrogels formed by grafting polymerization of carboxymethyl starch and chitosan were studied, and the surface morphology and texture properties of the hydrogels were observed using scanning electron microscopy. Spectroscopic analyses confirmed the formation of acetal crosslink bridges including vanillin molecules.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Olga Olejnik, Anna Masek
Summary: This study proposes the use of natural phenolic compounds as additional crosslinkers in ENR/silica hybrids to improve the mechanical properties of bio-elastomers. The results showed that a small amount of natural phenolic compounds can enhance the crosslinking effect and mechanical properties of the material. Some of the prepared materials also exhibited the ability to regain mechanical properties after reprocessing. These materials, consisting of natural and safe ingredients, have the potential to be novel elastomeric biomaterials for biomedical applications.
Article
Biochemistry & Molecular Biology
Dominika Kajszczak, Agnieszka Kowalska-Baron, Dorota Sosnowska, Anna Podsedek
Summary: This study investigated the composition of phenolic compounds in V opulus bark and flower, as well as their inhibitory effects on digestion and enzymes. The results showed that phenolic extracts from the bark and flower could reduce the absorption of potato starch and inhibit alpha-amylase and alpha-glucosidase. The findings provide a basis for further development of V opulus bark compounds as components of nutraceuticals and functional foods with antidiabetic activity.
Review
Chemistry, Physical
Karol Tutek, Anna Masek
Summary: This review article provides basic information about cannabis, including its structure, impact on human development, and its cultivation and application in the economy. It also focuses on the chemical composition of cannabis derivatives, detailing their characteristics and properties. Unlike other review articles, it takes a holistic and evolutionary approach, covering the plant's life cycle and discussing the use of hemp derivatives in polymer composites. It also highlights the pro-ecological aspects and suggests possible directions for further technological development.
Article
Chemistry, Physical
Radoslaw Busiak, Anna Masek, Aleksandra Wegier, Adam Rylski
Summary: The presented research focuses on the mechanochemical modification of a snap-cure epoxy resin with the addition of cellulose for the production of a controlled-degradation material with potential application in rail transport. Various tests were conducted to evaluate the properties and performance of the cellulose-filled epoxy resin composites. The results showed that the addition of cellulose did not significantly affect the properties of the composites. This research aligns with the industry's pursuit of eco-friendly solutions and materials with a positive impact on the environment.
Article
Biochemistry & Molecular Biology
Malgorzata Latos-Brozio, Anna Masek, Malgorzata Piotrowska
Summary: This study successfully achieved enzymatic polymerization of naringenin and investigated the properties of poly(naringenin). It was found that the polymeric forms of naringenin exhibited improved thermal stability, antioxidant activity, and antimicrobial properties compared to the basic flavonoid. In particular, poly(naringenin)-laccase showed better scavenging activity for ABTS(+center dot) radicals and antimicrobial activity against E. coli.
Article
Biochemistry & Molecular Biology
Dorota Sosnowska, Dominika Kajszczak, Anna Podsedek
Summary: The present study investigated the nutrients, biologically-active compounds, as well as antioxidant and anti-lipase activities of chokeberry fruits at different stages of development. Unripe green fruits showed the highest content of total phenolics and important nutrients, while ripe black fruits exhibited the highest content of total carotenoids, total anthocyanins, and total sugars. Unripe fruits displayed the strongest inhibitory effect on pancreatic lipase and antioxidant activity.
Article
Biochemistry & Molecular Biology
Konrad Stefaniak, Anna Masek, Aleksandra Jastrzebska
Summary: This research aimed to investigate the potential impact of natural antioxidants on epoxidized natural rubber and poly(lactic acid) green composites. The results revealed that catechin hydrate can delay the degradation of the blends, while flavone can serve as an aging indicator. Therefore, these eco-friendly composites can be applied in polymer technology where specific properties are desired.
Article
Biochemistry & Molecular Biology
Dorota Sosnowska, Anna Podsedek, Alicja Z. Kucharska
Summary: Phytocompounds in chokeberry fruit, particularly highly polymerized procyanidins, effectively inhibit pancreatic lipase activity. Fractionation and identification of phenolic compounds showed that low-molecular-weight phenolic compounds were less active. The most active fraction exhibited a mixed mode of pancreatic lipase inhibition and showed a cumulative effect with orlistat.
Article
Electrochemistry
Wenhai Tan, Youfeng Zhang, Yichen Zhang, Yanbo Ma, Chao Zhao, Yinling Wang
Summary: This study synthesized Co3O4/CC cathode materials with excellent performance for aqueous zinc-ion batteries by varying the reactant concentration. The Co3O4/CC nanowires exhibited uniform distribution, regular surface, and small size on the carbon cloth. The battery assembled with Co3O4/CC material synthesized at a reactant concentration ratio of 2:1 showed better performance, with high discharge specific capacity and capacity retention rate.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
Article
Electrochemistry
T. Salahuddin, Iqra Kousar, Mair Khan, M. Munawwar Iqbal Ch
Summary: This paper investigates the dynamics of fluid motion powered by cilia within a curved channel and examines the chemical reactions occurring in the presence of electro-osmotic impact. The findings offer insights into various flow characteristics and present a method for simulating non-Newtonian fluid models in three dimensions. Additionally, the model has potential applications in the development of micro-vascular chips, which could be crucial for diagnosing blood-related issues.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
Review
Electrochemistry
Ahmed Abou-Shady
Summary: Soil electrokinetic (SEK) is a significant technology with various applications in fields such as soil remediation, pollutant removal, and water regulation. This review summarizes the recent advancements in SEK, focusing on electrode modifications and material additives, and suggests future research directions.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
